<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数" id="i1">
<input type="button" value="猜一猜" onclick="f()">
<div></div>
<script>
  /*生成1-100之间的随机数  Math.random() 得到0-1随机小数*/
  let x =  parseInt(Math.random()*100)+1;
  let count=0;
function f() {
    count++
    let i = document.querySelector("#i1")
    let d = document.querySelector("div")
    if (i.value>x){
        d.innerText="猜大了"
    }else if(i.value<x){
        d.innerText="猜小了"
    }else{d.innerText="恭喜你第"+count+"次猜对了"}

}

</script>
</body>
</html>